iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: fec: add interrupt coalesc quirk flag

Browse Source 
Different i.MX SOC FEC support different features like :
- i.MX6Q/DL FEC does not support AVB and interrupt coalesc
- i.MX6SX/i.MX7D supports AVB and interrupt coalesc
- i.MX6UL/ULL does not support AVB, but support interrupt coalesc

So, add new quirk flag to judge the supported features.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Fugang Duan 2016-06-22 18:52:35 +08:00 committed by David S. Miller
parent 2b7c4f7a0e
commit ff7566b8d7
2 changed files with 11 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/freescale/fec.h
View File

@ -442,6 +442,8 @@ struct bufdesc_ex {
#define FEC_QUIRK_SINGLE_MDIO (1 << 11)
/* Controller supports RACC register */
#define FEC_QUIRK_HAS_RACC (1 << 12)
/* Controller supports interrupt coalesc */
#define FEC_QUIRK_HAS_COALESCE (1 << 13)
struct bufdesc_prop {
int qid;

19
drivers/net/ethernet/freescale/fec_main.c
View File

@ -111,7 +111,7 @@ static struct platform_device_id fec_devtype[] = {
FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM |
FEC_QUIRK_HAS_VLAN | FEC_QUIRK_HAS_AVB |
FEC_QUIRK_ERR007885 | FEC_QUIRK_BUG_CAPTURE |
FEC_QUIRK_HAS_RACC,
FEC_QUIRK_HAS_RACC | FEC_QUIRK_HAS_COALESCE,
}, {
/* sentinel */
}
@ -2358,9 +2358,6 @@ static void fec_enet_itr_coal_set(struct net_device *ndev)
struct fec_enet_private *fep = netdev_priv(ndev);
int rx_itr, tx_itr;
if (!(fep->quirks & FEC_QUIRK_HAS_AVB))
return;
/* Must be greater than zero to avoid unpredictable behavior */
if (!fep->rx_time_itr || !fep->rx_pkts_itr ||
!fep->tx_time_itr || !fep->tx_pkts_itr)
@ -2383,10 +2380,12 @@ static void fec_enet_itr_coal_set(struct net_device *ndev)
writel(tx_itr, fep->hwp + FEC_TXIC0);
writel(rx_itr, fep->hwp + FEC_RXIC0);
writel(tx_itr, fep->hwp + FEC_TXIC1);
writel(rx_itr, fep->hwp + FEC_RXIC1);
writel(tx_itr, fep->hwp + FEC_TXIC2);
writel(rx_itr, fep->hwp + FEC_RXIC2);
if (fep->quirks & FEC_QUIRK_HAS_AVB) {
writel(tx_itr, fep->hwp + FEC_TXIC1);
writel(rx_itr, fep->hwp + FEC_RXIC1);
writel(tx_itr, fep->hwp + FEC_TXIC2);
writel(rx_itr, fep->hwp + FEC_RXIC2);
}
}
static int
@ -2394,7 +2393,7 @@ fec_enet_get_coalesce(struct net_device *ndev, struct ethtool_coalesce *ec)
{
struct fec_enet_private *fep = netdev_priv(ndev);
if (!(fep->quirks & FEC_QUIRK_HAS_AVB))
if (!(fep->quirks & FEC_QUIRK_HAS_COALESCE))
return -EOPNOTSUPP;
ec->rx_coalesce_usecs = fep->rx_time_itr;
@ -2412,7 +2411,7 @@ fec_enet_set_coalesce(struct net_device *ndev, struct ethtool_coalesce *ec)
struct fec_enet_private *fep = netdev_priv(ndev);
unsigned int cycle;
if (!(fep->quirks & FEC_QUIRK_HAS_AVB))
if (!(fep->quirks & FEC_QUIRK_HAS_COALESCE))
return -EOPNOTSUPP;
if (ec->rx_max_coalesced_frames > 255) {